We have a rare look inside apple. 30 years ago the company launched its groundbreaking super bowl ad launching the Mcintosh and ref losingizing commercials during the big game and David Muir has an exclusive with the CEO. Nothing like showing up and having the CEO tell you I need to upgrade my iPhone. First thing he said. De give you one. He didn't. That's for sure. This morning we asked him just about everything from the first Mac made in America to all that talk about secrecy inside apple. Is there black cloth draped over all their secret projects? 30 years ago today America meets the Mac. On January 24th apple computer will introduce Mcintosh. Reporter: Steve jobs -- I want to show you Mcintosh in person. Happy anniversary, I should say. Yes. Reporter: We were invited to meet the man who was hand picked. Tim cook gets up every morning at 3:45. You get e-mails from customers every single day and you read them. Yes, I do. I do and these -- this is a privilege. Reporter: How many do you think you read a day, Tim? I get probably 700 or 800 and I read the majority of those. Reporter: Every day? Every day, I'm a workaholic. Which helps. Reporter: His team laughs but it's true and infectious. I knew someday I'd work at apple. We were working on something that would change the way people interacted with computers. Reporter: Secrecy is part of the culture, is it not? We believe people love surprises. Reporter: There are stories of black drapes over products in development. True? Yes, there's black drapes and numerous locked doors and many other things. Reporter: And employees who can't even tell their families at home what they're working on. Yes, that's true. Reporter: So for the viewers saying, David, you got to find out what the next thing is -- Your badge probably wouldn't work in those rooms. Reporter: With a little help from Tim cook himself now on Twitter. Let me ask about a tweet I love recently tweeting "We have begun manufacturing the Mac pro in Austin. It's the most powerful Mac ever. What we noticed was Austin, Texas. You're making computers here in America. We are. Reporter: How big of a deal is that? It's a big deal but we think we can do more and announced a huge investment in Arizona. We haven't said what it's for. Is it the sapphire -- It's the sapphire announcement and all I'll say about it. Reporter: When does that come off the line? I can't tell you that. Reporter: For iger iPhone screens -- I can't tell you that. Reporter: Or watch. I tried, robin. That sapphire glass is a specialty glass that can protect cameras and iPhones. Many think it can be used for something more. We'll ask about the surveillance program and he's been to the white house and talked to the president and what he wants to reveal about the program. I bet he has something to say. He says it might put American people at rest if he were to talk. Now, that's a tease.

This transcript has been automatically generated and may not be 100% accurate.